If you like Nixie tubes and/or DIY calculators, checkout this interesting talk from the HP Handheld Conference in Orlando last month by [Eric Smith] from Brouhaha and [John Doran] from Time Fracture.

The early HP Reverse Polish Notation calculators have a special place in the hearts of engineers and tinkerers as there are lots of projects involving them. They haven’t been produced in decades, but ...

If you are interested in building your very own RPN calculator you might be interested in a new project published to the Instructables website this week by member Shiura. Using a CNC machine, the ...

In my experience, once you are used to it, RPN is faster for entering complex equations. That doesn't make it better, though. It's only really important if you are doing calculations all the time and ...

Some sad news for those people who value RPN entry logic. Aside from a trio of graphing calculators, HPAQ has killed RPN as an option on their regular scientific calculators. This is the end of an era ...